in a class, the ratio of boys to girls is four to three. if there are 20 boys in the class, how many girls are there? process plss
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Related Questions
Help me solve this problem please
Answers
Answer:
x=0
Step-by-step explanation:
10 Points, and thank you!
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Kevin is 3 times as old as
Daniel. 4 years ago, Kevin was 5 times as old as Daniel.
How old is Daniel now?
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Answer:
Daniel is 8 years old now.
Step-by-step explanation:
From the word problem we can make the following two equations:
Let "K" be Kevin's age now and let "D" be Daniel's age now, then...
K = 3D
K - 4 = 5(D - 4)
Now we substate the value of K, and get...
K - 4 = 5(D - 4)
3D - 4 = 5(D - 4)
3D - 4 = 5D - 20
3D - 5D = - 20 + 4
- 2D = - 16
D = 8
Therefore Daniel is 8 years old now.
Question 2 of 20 -
2020-2021 T-Mat
What is the area of the shape below?
6 yd
4 yd
5 yd
9 yd
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What is the slope of the line?
Answers
Answer:
1
Step-by-step explanation:
slope=rise/run
rise is up or down
run is right or left
9/9=1 or -9/-9=1
so the answer is 1
Find y. Give your answer in
the simplest form.
y =
Enter the number that belongs in the green box.
Answers
Answer:
y = 8 root 2
Step-by-step explanation:
Since it is a 90-45-45 triangle, y is s root 2
s = 8
so, y = 8 root 2
Answer:
y=8√2
Step-by-step explanation:
Because 2 of the angles are the same, the triangle is isosceles (because of base angles theorem). Therefore, x=8. Using Pythagoras theorem, y=8√2.
The salary of 12workers is $ 3732 . what will be the salary of 5 workers
Answers
X= ($3732)(5)/12
X= $1555
Salary of 5 workers is $1555
Answer:
746.4
Step-by-step explanation:
2. Y - 3 = X + 2
2X - 1 = Y
Show your work
Answers
2X - 1 = Y ........................... (2)
From (2),
2X - 1 = Y
Y = 2X - 1
Sub (2) into (1),
(2X-1) - 3 = X + 2
2X - 1 - 3 = X + 2
2X - X = 2 + 1 + 3
X = 6
Sub x=6 into (1),
Y = 2(6) - 1
Y = 12 - 1
Y = 11
The perimeter of a rectangular
Sheet is 120 cm. If the length is 40 cm, find its breadth.
Also find its area.
Answers
Answer:
Breadth = 20 cm
Area = 800[tex]cm^{2}[/tex]
Step-by-step explanation:
Perimeter = 120 cm
length = 40 cm
Perimeter = 2 ( L + B )
L - length B - Breadth
120 = 2 ( 40 + B )
120 = 80 + 2B
2B = 120 - 80
2B = 40
B = [tex]\frac{40}{2}[/tex] = 20 cm
Breadth = 20 cm
Area of a reactangle = Length × Breadth
= 40 × 20
= 800[tex]cm^{2}[/tex]
16. At the same time a 10-foot pole casts a 22-foot shadow,
a nearby tree casts a 33-foot shadow. How tall is the tree?
Answers
Answer:
iik
Step-by-step explanation:
Bryan initially filled a measuring cup with 3/10 of a cup of syrup from a large jug. Then he poured 1/10 of a cup back into the jug. How much syrup remains in the measuring cup?
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Sam paid £8 for two footballs.
One football cost £2 more than the other
What was the cost of the more expensive football?
[2 marks]
Answer
Answers
Answer:
£6 you do £8-£2= £6
Step-by-step explanation:
Answer:
£8-£2=£6
Step-by-step explanation:
Help me solve this problem please
Answers
Answer:
JL = 54
Step-by-step explanation:
JL = JK + KL
JK = KL
8x+11 =14x-1
12 = 6x
x = 2
substitute for x:
8(2)+11 + 14(2)-1 = JL
JL = 16+11+28-1
JL = 54
A jet airliner, flying initially 300 mi/hr due
east, suddenly enters a region where the
wind is blowing 100 mi/hr, pushing the
aircraft in the direction 30° north of east.
What is the resultant speed of the aircraft?
Answers
Answer:
389.82 mi/hr
Step-by-step explanation:
For us to find the resultant speed of the aircraft, we will simply add the vector components of the wind and the vector velocity of the aircraft to get;
V = v_xi^ + v_yj^
Now,
v_xi^ = (300 + 100cos30°)i^
v_yj^ = (100 sin 30°) j^
This gives;
v_xi^ = 386.6 i^
v_yj^ = 50 j^
Thus;
V = 386.6 i^ + 50 j^
Resultant velocity is;
|V| = √(386.6² + 50²)
|V| = √151959.56
|V| = 389.82 mi/hr
whats the ninth term of 25 20 15 10 5
Answers
Given:
The sequence is 25, 20, 15, 10, 5.
To find:
The ninth term of the given sequence.
Solution:
We have,
25, 20, 15, 10, 5
It is an AP because the difference between two consecutive terms are same.
Here,
First term (a) = 25
Common difference (d) = 20-25
= -5
The nth terms of an AP is
[tex]a_n=a+(n-1)d[/tex]
Where, a is the first term and d is the common difference.
Putting a=25, n=9 and d=-5 to get the 9th term.
[tex]a_9=25+(9-1)(-5)[/tex]
[tex]a_9=25+(8)(-5)[/tex]
[tex]a_9=25-40[/tex]
[tex]a_9=-15[/tex]
Therefore, the ninth term of the given sequence is -15.
3w + 4c - 9
use w = -5 and c = -9
please show work also!<2
Answers
Answer:
-60
Step-by-step explanation:
3(-5)+4(-9)-9
-15+-36-9
= -60
Just fill in and solve. Hope this helps ;)
Answer:
-60
Step-by-step explanation:
3(-5)+4(-9)-9= -60
I want to take the measurements of my 5 avocado trees and order their
heights from shortest to tallest, that way they can get enough sunlight to
continue growing. I have to worry about sea level, so those above sea
level get sunlight more easily (positive is above sea level, negative is
below sea level). The 5 heights are in feet: 6,-3, 2,-8,-6. Please help me
order them from shortest to tallest so I plant them in the right order to get
enough sunlight.
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Answer:
If we are saying everyhing above sea level is taller then plants under sea level. Then here is the order
Step-by-step explanation:
-8, -6, -3, 2, 6
And just in case it's above sea level the shortest then 6, 2, -3, -6, -8
According to a 2021 survey, the number of people who voted in favor of online shopping was 2,340. The number of people who voted against the online shopping was 1,260. What percent of the voters were in favor of the online shopping?
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Answer:
Step-by-step explanation:
according to me im and idiont
ko[[[[[[[[[[[[[[[[[[i
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Answer:
70, 000 grams
Step-by-step explanation:
first convert grams to kilograms
there are 1,000 grams in a kilogram so multiply the 200 kg by 1,000
so
200 * 1000 = 200,000
200,000 grams of vegetables is what he started with
then you have to multiply that by the 35% that he sold
so
200,000 * 35% = 70,000
he sold 70,000 grams of vegetables by noon
Which function is represented in the graph shown?
A)
f(x) = x2 + 2x - 15
B)
f(x) = x2 - 8x + 15
0
RX) = -x2 + 2x + 15
D)
RX) -x? - 2x + 15
HELP ASAP
Answers
Answer:
wheres the graph? u can insert a image!
Step-by-step explanation:
30 POINTS HELP MATH PLEASE ILL GIVE BRAINIEST
Show work please :)
Answers
Answer:
yo
Step-by-step explanation:
Answer:
71.55
Step-by-step explanation:
a2 + b2 = c2
c=square route (a2+b2)
what is an answer to the following equation?
5z=60
1. z=65
2. z=55
3. z=300
4. z=12
Answers
Answer:
z=12
Step-by-step explanation:
5z=60
divide both sides by 5
z=60/5
z=12
Answer:
5z/5=60/5
4
12
answer to the question is 12
The sum of 2 numbers is 36. Their difference is 24. Find the numbers.
Answers
Answer:
So the answer is 6 and 30.
Answer: 30 and 6
Step-by-step explanation:
A line's y-intercept is -9, and its slope is 1. What is its equation in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answers
Answer:
y=x-9
Step-by-step explanation:
3.
A balloon is released from the top of a building. The graph shows the height of the balloon over time. What does the slope and y-intercept reveal about the situation?
A. The balloon starts at a height of 500 ft and rises at a rate of 300 ft.
B. The balloon starts at a height of 500 ft and rises at a rate of 150 ft.
C. The balloon starts at a height of 0.05 ft and rises at a rate of 150 ft.
Answers
Answer:
Option B will be your answer
Step-by-step explanation:
B. The balloon starts at a height of 500 ft and rises at a rate of 150 ft.
hope it helps ^_^
Answer:
the answer is C
Step-by-step explanation:
It shows the line starts at 0.05 a d to get to 3 it has to raise upb150 ft
A car travels 60 km in 40 minutes.
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Answer:
what is the question?? nebebaiajbw
what does p equal?pls help me.
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[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the inequalities.
9p -9 <4p -2
===> 9p - 4p < -2 +9
===> 5p < 7
===> p < 7/5
hence the answer is P < 7/5
Walter lived 2 years longer than his brother Martin. Walter was 79 at the time of his death. Which equation could be used to find Martin's age, a, at the
time of his death?
O a + 2 = 79
O 79 + 2 = a
O 79 + a = 2
O a- 79 = 2
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Find the value of k for which equation k2x2+2kx=4x-6 has no real roots.
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Answer:
Step-by-step explanation:
What is the area of the figure below?
Answers
Answer:
86 is the area of the figure
Step-by-step explanation:
16+70